KMR ALPHA KeyMod Free Float AR-15 Handguard – 15″

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KMR ALPHA KeyMod Free Float AR-15 Handguard – 15″

Built for precision and durability, the KMR ALPHA 15″ handguard gives your AR-15 a lightweight yet rigid platform for optics, grips, and accessories. Its KeyMod mounting system keeps your setup streamlined while offering ample real estate for tactical configurations. Machined from 6061-T6 aluminum and hardcoat anodized, it withstands recoil, drops, and harsh conditions without adding unnecessary bulk. Ships discreetly to all US states with no FFL required.

Key Specifications

• Material: 6061-T6 aluminum, Type III hardcoat anodized
• Length: 15 inches (true free-float design)
• Weight: 11.2 oz (stripped)
• Mounting System: KeyMod slots (M-LOK adapters available separately)
• Barrel Nut: Proprietary steel design with anti-rotation tabs
• ID/OD: 1.3″ inner diameter / 1.5″ outer diameter
• Finish: Matte black (non-reflective)

Feature Breakdown

The KMR ALPHA’s monolithic top rail ensures consistent zero retention for optics and backup irons, while the KeyMod slots along the 3/6/9 o’clock positions let you attach lights, lasers, or vertical grips without tools. The scalloped underside reduces weight and improves heat dissipation during rapid fire—critical for competition shooters or extended range sessions.

Unlike clamshell-style handguards, the free-float design eliminates contact with the barrel, improving accuracy by preventing harmonics interference. The barrel nut uses a timed wrench system for secure installation, and the anti-rotation tabs lock the handguard in place even under heavy use. No shift, no wobble.

At just over 11 ounces, this handguard shaves weight compared to quad rails while maintaining structural rigidity. The anodized finish resists scratches and corrosion, and the slim profile accommodates most suppressor mounts or gas blocks. Compatible with standard AR-15 front sight posts if used with a low-profile gas block.

The 1.3″ inner diameter provides ample clearance for adjustable gas systems or thicker barrels, while the flared end protects your support hand from accidental contact with a hot muzzle device. No sharp edges—every contour is machined for ergonomics.

Compatibility

• Fits most mil-spec AR-15 uppers (DPMS pattern)
• Designed for low-profile gas blocks (not compatible with A2 front sight towers unless modified)
• Works with carbine-, mid-, or rifle-length gas systems
• Requires proprietary barrel nut (included)

Installation Overview

Remove your existing handguard and gas block (if applicable). Slide the included barrel nut onto the upper receiver threads, timing it with the provided wrench. Secure the handguard onto the nut, aligning the anti-rotation tabs with the receiver’s index points. Torque to spec, then attach accessories via KeyMod hardware. No gunsmithing required—basic AR tools suffice.

FAQ

Q: Does this work with a .750″ low-profile gas block?
A: Yes, the internal clearance accommodates most standard low-profile blocks.

Q: Can I use M-LOK accessories?
A: Yes, with KeyMod-to-M-LOK adapters (sold separately).

Q: Is the top rail continuous for optics mounting?
A: Yes, it provides a full-length Picatinny rail for red dots or scopes.

Q: Will this fit a billet upper?
A: Compatible with most mil-spec forged uppers; some billet designs may require fitting.

Q: How heat-resistant is the finish?
A: The hardcoat anodizing withstands typical semi-auto heat levels without discoloration.

Warranty & Shipping

Lifetime warranty against manufacturing defects. Ships via USPS or UPS with discreet packaging (no external branding). All orders processed within 1 business day. No FFL required—handguards are not regulated components.

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